Pratik was talking to his sister _ midnight.(until, unless)
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Explanation:
WHAT HAPPENS WHEN THE EGG IS
NOT FERTILIZED
If the egg is not fertilized, it lives for about one day.
Since the ovary releases one egg every month; the
uterus also prepares itself every month to receive a
fertilized egg. Its lining becomes thick and spongy for
nourishing the embryo. In case the egg is not
fertilized, this lining is not needed anymore. So the
lining slowly breaks and comes out of vagina as blood
and mucous. This cycle takes place every month and
known as MENSTRUATION.
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Answer:
until is the answer
l hope it helps you...........
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